systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTLS backend. NOTE: This has been disputed by the developer as not a vulnerability since hostname validation does not have anything to do with this issue (i.e. there is no hostname to be sent)
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade systemd | Jul 30, 2024 | Oct 30, 2019 |
| Suse | — | Upgrade libudev1-32bitUpgrade libsystemd0Upgrade systemd-coredumpUpgrade libudev1Upgrade systemd-sysvinitUpgrade libudev-develUpgrade systemd-containerUpgrade systemdUpgrade systemd-32bitUpgrade systemd-langUpgrade systemd-develUpgrade udevUpgrade systemd-docUpgrade systemd-journal-remoteUpgrade libsystemd0-32bit | Feb 4, 2022 | Oct 30, 2019 |
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